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AXIS 241QA/AXIS 241SA - System options
IEEE 802.1X
IEEE 802.1x is an IEEE standard for port-based Network Admission Control. It provides
authentication to devices attached to a network port (wired or wireless), establishing a
point-to-point connection, or if authentication fails, preventing access on that port. 802.1x
is based on EAP (Extensible Authentication Protocol).
In a 802.1x enabled network switch, clients equipped with the
correct software can be
authenticated and allowed or denied network access at the Ethernet level.
Clients and servers in an 802.1x network may need to authenticate each other
by some
means. In the Axis implementation this is done with the help of digital certificates
provided by a Certification Authority. These are then validated by a third-party entity,
such as a RADIUS server, examples of which are Free Radius and Microsoft Internet
Authentication Service.
To perform the authentication, the RADIUS server uses various EAP methods/protocols, of
w
hich there are many. The one used in the Axis implementation is EAP-TLS
(EAP-Transport Layer Security).
The AXIS network video device presents its certificat
e to the network switch, which in turn
forwards this to the RADIUS server. The RADIUS server validates or rejects the certificate
and responds to the switch, and sends its own certificate to the client for validation. The
switch then allows or denies network access accordingly, on a preconfigured port.
RADIUS
RADIUS (Remote Authentication Dial In User Service) is an AAA (Authentication
,
Authorization and Accounting) protocol for applications such as network access or IP
mobility. It is intended to work in both local and roaming situations.
CA servers
In cryptography, a Certification Authority (CA) is
an entity that provides signed digital
certificates for use by other parties, and thus acts a trusted third party.
There are many commercial CAs that charge for th
eir services. Institutions and
governments may have their own CA, and there are free CAs available.
Date & time
Current server time - displays the current date and time (24h clock). The time can be
displayed in 12h clock format in overlay images.
New server time - se
lect your Time Zone from the drop-down list and check the daylight
saving time changes, if you want.